Some optical drives can write to both Blu-ray discs and DVD-RW discs

What is wrong with the following structure definition?

struct MyStruct { int size; float weight; } a. Nothing b. Can not have mixed data types in a structure c. missing semicolon d. Braces are not needed.

Which of the following is not an STL container type?

a. Second-class containers. b. Sequence containers. c. Associative containers. d. Container adapters.